<http://schema.org/keywords>
"college football iron bowl auburn tigers auburn football Alabama Crimson Tide alabama football Michigan Wolverines michigan football Ohio State Buckeyes ohio state football"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.si.com/football/2013/12/03/iron-bowl-finish-michigan-ohio-state-two-point-conversion>